2.4 Data Collection Techniques and Data Analysis Review

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Sedentary

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Organisms that do not move, such as plants or rocky shore species like barnacles.

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Point Quadrat

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A T-shaped frame used to carry out point sampling, with the bar of the T having ten holes.

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Light Traps

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A source of light that can include fluorescent lamps and UV lights, commonly used to collect data on nocturnal moths.

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Lincoln Index

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A method used to calculate estimated population size using the capture-mark-recapture technique, represented by the formula N= n1*n2 / m2.

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Mark-Recapture Method

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A technique used to estimate the size of a population where it is not practical to catch all individuals, involving trapping and marking individuals harmlessly.

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Mobile

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Organisms that are capable of movement.

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Nomadic

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Organisms that move from one place to another in search of food or resources.

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Migratory

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Organisms that move from one region to another at certain times of the year.

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Line Transect

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A method of sampling where a line is drawn across a habitat and data is collected along that line.

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Belt Transect

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A method of sampling that involves a strip of land where all organisms within that strip are counted.